diff --git a/buildroot/share/PlatformIO/scripts/mks_robin.py b/buildroot/share/PlatformIO/scripts/mks_robin.py
index e4109635c85d..742f4cd17379 100644
--- a/buildroot/share/PlatformIO/scripts/mks_robin.py
+++ b/buildroot/share/PlatformIO/scripts/mks_robin.py
@@ -1,7 +1,9 @@
 Import("env")
 
 # Relocate firmware from 0x08000000 to 0x08007000
-env['CPPDEFINES'].remove(("VECT_TAB_ADDR", 134217728))
+for define in env['CPPDEFINES']:
+    if define[0] == "VECT_TAB_ADDR":
+        env['CPPDEFINES'].remove(define)
 env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))
 env.Replace(LDSCRIPT_PATH="buildroot/share/PlatformIO/ldscripts/mks_robin.ld")
 
diff --git a/platformio.ini b/platformio.ini
index 15b8e6c24d2d..f23ac3e54638 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -297,12 +297,13 @@ monitor_speed = 250000
 # MKS Robin (STM32F103ZET6)
 #
 [env:mks_robin]
-platform      = ststm32@<4.4.0
+platform      = ststm32
 framework     = arduino
 board         = genericSTM32F103ZE
 extra_scripts = buildroot/share/PlatformIO/scripts/mks_robin.py
 build_flags   = !python Marlin/src/HAL/HAL_STM32F1/STM32F1_flag_script.py
   ${common.build_flags}
+  -DSTM32F1 -DdigitalPinHasPWM(P)='(PIN_MAP[P].timer_device != NULL)'
 src_filter    = ${common.default_src_filter} +<src/HAL/HAL_STM32F1>
 lib_deps      = ${common.lib_deps}
 lib_ignore    = c1921b4